Related by context. Frequent words. (Click for all words.) 57 groundwater 57 aquifer 54 underground aquifer 54 aquifers 52 groundwater contamination 52 polluted groundwater 52 wellfield 51 contaminated groundwater 51 water 51 reservoir 50 contaminants 50 groundwater recharge 49 chlorination 49 flowback 49 Aquifer 49 dewatering 49 contaminated soil 49 wastewater 49 groundwater basin 49 underground aquifers 48 harmful contaminants 48 chlorinating 48 contamination 48 contaminate groundwater 48 dewatered 48 contaminated 47 evaporation ponds 47 contaminant 47 wells 46 chlorinated 46 arsenic contamination 46 reinjection 46 unnamed tributary 46 chloramine 46 Wastewater Treatment Facility 46 contaminated soils 46 chlorine 46 membrane filtration 46 subsurface 46 groundwater remediation 46 brine 46 sewage lagoon 46 radioactive tritium 46 Creek tributary 46 wastewater treatment 45 mill tailings 45 picocuries per 45 sodium hypochlorite 45 Raw sewage 45 fracking fluid 45 dissolved solids 45 tetrachlorethylene 45 Water Treatment Plant 45 submersible pumps 45 perchlorate contamination 45 chloramines 45 hydrogeologist 45 watercourse 45 hydrofluoric acid 44 injection wells 44 leachate 44 wastewater discharge 44 effluent 44 hydrogeological 44 outfall 44 artesian 44 brines 44 treated effluent 44 total dissolved solids 44 sumps 44 Groundwater 44 NJDEP 44 radium 44 penstock 44 fracking fluids 44 filtration 43 radionuclides 43 drainage basins 43 reservoirs 43 chlorine dioxide 43 disinfection 43 vapor intrusion 43 arsenic 43 maximum contaminant 43 chlorinate 43 dewater 43 sediment 43 chlorides 43 sewer mains 43 microbial contamination 43 geologic formations 43 Edwards Aquifer 43 Treatment Plant 43 odorant 43 basin 42 denitrification 42 vinyl chloride 42 potable water 42 OEPA 42 clarifier 42 Ogallala Aquifer